Period
to 20 January 2018

The median contractor rate for a Senior Developer was £365 per day in advertised job vacancies in Hertfordshire during the 6 months to 20 January 2018.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Senior Developer
East of England > Hertfordshire
6 months to
20 Jan 2018
Same period 2017 Same period 2016
Rank 54 58 76
Rank change year-on-year +4 +18 +11
Contract jobs requiring a Senior Developer 43 39 16
As % of all contract IT jobs advertised in Hertfordshire 2.82% 2.79% 1.13%
As % of the Job Titles category 3.00% 2.90% 1.20%
Number of daily rates quoted 39 33 3
Hertfordshire median daily rate £365 £525 £425
Median daily rate % change year-on-year -30.48% +23.53% -5.56%
10th Percentile £323 £375 £315
90th Percentile £567 £568 £478
East of England median daily rate £500 £465 £425
% change year-on-year +7.53% +9.41% -5.56%
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate £45.00 £16.50 -
% change year-on-year +172.73% - -

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in Hertfordshire. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of contract jobs in our overall sample.

All Contract IT Job Vacancies
Hertfordshire
Contract vacancies in Hertfordshire with a recognized job title 1,431 1,343 1,337
% of contract IT jobs with a recognized job title 93.90% 96.00% 94.55%
Number of daily rates quoted 718 759 672
Hertfordshire median daily rate £400 £410 £400
Median daily rate % change year-on-year -2.44% +2.50% +6.67%
10th Percentile £200 £210 £198
90th Percentile £575 £550 £575
East of England median daily rate £413 £388 £395
% change year-on-year +6.45% -1.90% +5.33%
Number of hourly rates quoted 110 85 134
Hertfordshire median hourly rate £17.50 £14.50 £15.50
Median hourly rate % change year-on-year +20.69% -6.45% -4.32%
10th Percentile £10.23 £10.14 £9.00
90th Percentile £44.65 £52.50 £44.63
East of England median hourly rate £19.50 £20.80 £22.50
% change year-on-year -6.25% -7.56% +12.50%

Senior Developer
Job Vacancy Trend in Hertfordshire

Job postings that featured Senior Developer in the job title as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for Senior Developer in Hertfordshire

Senior Developer
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Senior Developer in Hertfordshire.

Contractor daily rate trend for Senior Developer in Hertfordshire

Senior Developer
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Senior Developer in Hertfordshire over the 6 months to 20 January 2018.

Contractor daily rate histogram for Senior Developer in Hertfordshire

Senior Developer
Contractor Hourly Rate Trend in Hertfordshire

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Senior Developer in Hertfordshire.

Contractor hourly rate trend for Senior Developer in Hertfordshire

Senior Developer
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Senior Developer within the Hertfordshire region over the 6 months to 20 January 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford -15 11 £365 -30.48% 3
Letchworth - 7 £388 -
St Albans - 5 £338 - 7
Welwyn Garden City +3 4 £539 -6.91% 1
Borehamwood - 3 £365 -
Hemel Hempstead - 3 £450 -
Harpenden - 1 - - 1
Rickmansworth - 1 £345 -
Royston - 1 - -
Stevenage - 1 £325 -
Senior Developer
East of England

Senior Developer Skill Set
Top 30 Co-occurring IT Skills in Hertfordshire

For the 6 months to 20 January 2018, Senior Developer contract jobs required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Hertfordshire region featuring Senior Developer in the job title.

1 19 (44.19%) Agile Software Development
2 17 (39.53%) Oracle
3 12 (27.91%) SQL
3 12 (27.91%) CSS
3 12 (27.91%) C#
3 12 (27.91%) HTML
3 12 (27.91%) JavaScript
3 12 (27.91%) MVC
3 12 (27.91%) Finance
3 12 (27.91%) TDD
4 11 (25.58%) .NET
5 10 (23.26%) Java
6 9 (20.93%) Linux
6 9 (20.93%) Data Warehouse
6 9 (20.93%) Oracle Database
7 8 (18.60%) Apache
7 8 (18.60%) PL/SQL
8 7 (16.28%) Ajax
8 7 (16.28%) jQuery
9 6 (13.95%) Oracle Database 11g
9 6 (13.95%) Altova
9 6 (13.95%) Ruby on Rails
9 6 (13.95%) Git (software)
9 6 (13.95%) Ruby
9 6 (13.95%) XML
9 6 (13.95%) E-Commerce
9 6 (13.95%) Oracle Reports
9 6 (13.95%) Data Modelling
9 6 (13.95%) Toad
9 6 (13.95%) Business Intelligence

Senior Developer Skill Set
Co-occurring IT Skills in Hertfordshire by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 8 (18.60%) Apache
2 3 (6.98%) Elasticsearch
2 3 (6.98%) nginx
3 1 (2.33%) Drupal
3 1 (2.33%) Liferay
3 1 (2.33%) Oracle Application Server
3 1 (2.33%) Tomcat
Cloud Services
1 2 (4.65%) Amazon AWS
Communications & Networking
1 1 (2.33%) Firewall
1 1 (2.33%) Intranet
Database & Business Intelligence
1 9 (20.93%) Data Warehouse
1 9 (20.93%) Oracle Database
2 6 (13.95%) Oracle BI Publisher
2 6 (13.95%) Oracle Database 10g
2 6 (13.95%) Oracle Database 11g
2 6 (13.95%) Oracle OWB
2 6 (13.95%) Oracle Reports
2 6 (13.95%) Redis
2 6 (13.95%) SQLPlus
3 5 (11.63%) MySQL
3 5 (11.63%) SQL Server
4 4 (9.30%) SQL Server Integration Services
5 3 (6.98%) NoSQL
5 3 (6.98%) Relational Database
6 2 (4.65%) PostgreSQL
7 1 (2.33%) JasperReports
7 1 (2.33%) MongoDB
7 1 (2.33%) SAP Data Services
7 1 (2.33%) SAP HANA
7 1 (2.33%) SQL Server Reporting Services
Development Applications
1 6 (13.95%) Git (software)
1 6 (13.95%) Toad
1 6 (13.95%) XMLSpy
2 4 (9.30%) Team Foundation Server
3 3 (6.98%) Mercurial
4 1 (2.33%) RSpec
General
1 12 (27.91%) Finance
2 6 (13.95%) Games
3 4 (9.30%) Retail
4 1 (2.33%) French Language
Libraries, Frameworks & Software Standards
1 12 (27.91%) CSS
1 12 (27.91%) HTML
2 11 (25.58%) .NET
3 7 (16.28%) Ajax
3 7 (16.28%) jQuery
4 6 (13.95%) AngularJS
4 6 (13.95%) Ruby on Rails
4 6 (13.95%) XML
5 4 (9.30%) HTML5
5 4 (9.30%) WCF
6 3 (6.98%) LAMP
6 3 (6.98%) Laravel
6 3 (6.98%) LEMP Stack
6 3 (6.98%) Node.js
6 3 (6.98%) React
6 3 (6.98%) REST
6 3 (6.98%) SOAP
6 3 (6.98%) Symfony
6 3 (6.98%) Yii
7 2 (4.65%) Catalyst
Miscellaneous
1 6 (13.95%) Greenfield Project
2 3 (6.98%) Computer Science
2 3 (6.98%) Enterprise Software
3 1 (2.33%) User Experience
Operating Systems
1 9 (20.93%) Linux
2 2 (4.65%) Unix
3 1 (2.33%) Android
3 1 (2.33%) Windows
3 1 (2.33%) Windows 7
3 1 (2.33%) Windows Server
3 1 (2.33%) Windows Server 2012
Processes & Methodologies
1 19 (44.19%) Agile Software Development
2 12 (27.91%) MVC
2 12 (27.91%) TDD
3 6 (13.95%) Business Intelligence
3 6 (13.95%) Data Modelling
3 6 (13.95%) E-Commerce
3 6 (13.95%) Migration
3 6 (13.95%) Performance Tuning
4 5 (11.63%) Logical Data Model
4 5 (11.63%) Mentoring
4 5 (11.63%) OO
4 5 (11.63%) Pair Programming
4 5 (11.63%) Physical Data Model
4 5 (11.63%) Unit Testing
5 4 (9.30%) Microservices
5 4 (9.30%) Scrum
5 4 (9.30%) SDLC
5 4 (9.30%) SOLID
6 3 (6.98%) Continuous Delivery
6 3 (6.98%) DevOps
Programming Languages
1 12 (27.91%) C#
1 12 (27.91%) JavaScript
1 12 (27.91%) SQL
2 10 (23.26%) Java
3 8 (18.60%) PL/SQL
4 6 (13.95%) Ruby
5 3 (6.98%) C++
5 3 (6.98%) PHP
6 2 (4.65%) Perl
6 2 (4.65%) Python
7 1 (2.33%) TypeScript
Qualifications
1 3 (6.98%) Computer Science Degree
1 3 (6.98%) Degree
2 1 (2.33%) SC Cleared
2 1 (2.33%) Security Cleared
System Software
1 1 (2.33%) Active Directory
1 1 (2.33%) Docker
Systems Management
1 3 (6.98%) Ansible
1 3 (6.98%) Opscode Chef
1 3 (6.98%) Puppet
Vendors
1 17 (39.53%) Oracle
2 6 (13.95%) Altova
3 4 (9.30%) Microsoft
4 1 (2.33%) SAP
4 1 (2.33%) Talend